This quantitative study will seek to further develop and validate the POMAQ following the general tenants according to the Food and Drug Administration (FDA) Guidance for Industry, Patient-Reported Outcome Measures: Use in Medical Product Development to Support Labeling Claims (FDA 2009) which emphasizes the importance of conducting sound psychometric evaluation of patient-reported instruments through quantitative research methods. However, it should be noted that the POMAQ is not a typical PRO measure capturing a specific latent construct and the specified analytic approach to the POMAQ reflects this difference in theoretical frameworks.